Source by : Uploaded by userSwimsuits, Tankinis, Bikini Bottoms & Beach Clothing Whether blended with Lycra® or by itself, polyester is the leading fabric for competitive swimwear. New technologies in polyester have improved the hand and feel of the material, allowing it to surpass other fabrics. Polyester holds its color and is resistant to chlorine.How do you swim if you have your period? Steps a1) Insert a tampon or a menstrual cup before swimming. ... a2) Bring extra supplies. ... a3) Ignore any myths about why you shouldn't swim on your period. ... a4) Wear shorts if you're self-conscious about wearing a tampon. ... a5) Wear a darker-colored swimsuit if you're nervous about leakage. ... a6) Swim without worrying about your period. a7) Protect yourself from bloating and cramps. a8) Opt for sunbathing if you're uncomfortable swimming during your period.Yes, you can, but you should use a tampon. If you're just hanging out by the pool, you can use a pad, but I would wear shorts or a cover-up over your swimsuit bottoms. Pads are absorbent, and the sticky part will likely fail if you wear it in the water, so I wouldn't wear one if you're actually going swimming.